The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 45mm F2.8 DG DN C and the Voigtlander 40mm F1.4 Nokton Classic for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is a crucial factor to consider when comparing two lenses. Sigma 45mm F2.8 DG DN C is the longer of the two lenses at 46mm. The Voigtlander 40mm F1.4 Nokton Classic with a length of 30mm, is 16mm shorter. Besides being longer, the Sigma 45mm F2.8 DG DN C also has a larger diameter of 64mm compared to the Voigtlander 40mm F1.4 Nokton Classic's 55mm diameter.
The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods. Voigtlander 40mm F1.4 Nokton Classic weighs 175g, 18% (40g) lighter than the Sigma 45mm F2.8 DG DN C's weight of 215g.
Lens Mounts
The Sigma 45mm F2.8 DG DN C has the Leica L lens mount whereas the Voigtlander 40mm F1.4 Nokton Classic has the Leica M lens mount. Some of the latest released cameras that are compatible with these mounts are Leica SL3-P, Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount and Leica M EV1, Leica M11-D and Pixii Max for the Leica M Mount.
Sigma 45mm F2.8 DG DN C is also available in the Sony E mount.
Focal Range
Sigma 45mm F2.8 DG DN C is a prime lens with fixed focal lenght of 45mm.
On the other hand, the Voigtlander 40mm F1.4 Nokton Classic is a prime lens with fixed focal lenght of 40mm.
